General Category > Engine related issues
K1600GT Buid 2014 Engine Fault Misfire
bmorrison00:
I believe you're absolutely correct on the cylinder and firing order. I just don't like how the GS-911 reports it. BMW diags tells you which cylinder is missing. Simple and you don't have any possiblities of making a mistake. Thanks for the response.
Bill
Jughead:
--- Quote from: bmorrison00 on December 09, 2018, 11:10:17 PM ---I know this reply is late but I just got my GS-911 wifi and I have the same issues with engine misfires. The firing patter is 1-5-3-6-2-4. I had coil 2 and 4 that were failing and if you look at the report I believe coil 4 is cylinder 4 but 6th in firing order. Coil 2 is cylinder 5 but is the 2nd in the firing order. I wish the firmware reporting was clearer. Why can't it report which cylinder is misfiring without the notes such as coil 2 is cylinder 5 or cylinder 2 left on a boxer. BMW replaced coils on cylinders 4 and 5 and after getting my bike back I got 3 hits on coil 2 within 20 miles. BMW said they trusted their 5k dollar diagnostic reader over a 400 dollar tester. Don't know what to do after paying about 600 dollars and still have an engine fault light on.
bmorrison00
--- End quote ---
Coil number and cylinder number are synonymous. Looking at the highlighted portion of your comment above, you are correct in saying that coil 4 is cylinder 4 and 6th in firing order. How then do you in the next sentence change the complete logic and state that coil 2 is cylinder 5? Coil 2 is NOT cylinder 5. Coil 2 is cylinder 2, but firing 5th in the sequence.
It is actually quite simple. Just ignore the "Xth in firing order"
In your case you had coils 2 and 4 failing. So that would be cylinders 2 and 4. i.e. 2nd from left and 4th from left.
bmorrison00:
I does look like it's not logical but here's my logic. In the printout if a cylinder number is not mentioned than coil # is cylinder #. BMW replaced the coils for cylinder 4 and 5. My print out said coil 4 and then coil 2 (cylinder 5). I don't like the report the GS-911 gives when reporting a bad coil because it leaves too much for interpretation in my opinion. The BMW mechanic said thery're diagnostic tool from BMW reported cylinders 4 and 5. I should write Mark Blomer of Hex Code again and ask for clarification again. His email is tfemark@gmail.com.
bmorrison00:
Oh by the way coil 4 does say in the report it's 6th in the firing order so it is cylinders 4 and 5.
Jughead:
--- Quote from: bmorrison00 on December 11, 2018, 07:24:54 PM ---Oh by the way coil 4 does say in the report it's 6th in the firing order so it is cylinders 4 and 5.
--- End quote ---
Can you post a copy of said report from BMW?
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